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1·The hyperbolic orbit of and its mass the visual binary star ADS9446 is determined as an example.

作为例子，我们计算了目视双星ADS 9446的双曲线轨道。

2·The critical properties of both binary and ternary mixtures involved in the toluene disproportionation were measured by using a high-pressure view cell with visual observation.

用高压观测池通过可视观测确定了苯、甲苯和对二甲苯等二元系及三元系的临界性质以及甲苯歧化反应混合物临界性质随着反应进程的变化规律；

3·The constant volume visual method is used to measure the critical properties of CO2+toluene, CO2+cyclohexane, CO2+n-butyraldehyde, CO2+i-butyraldehyde, CO2+ methanol and CO2+alcohol binary systems.

本文首先采用固定体积的可视化观察法（乳光法）研究了在超临界CO_2加入甲苯、环己烷、正丁醛、异丁醛、甲醇和乙醇等共溶剂之后，整个体系临界性质的变化情况。